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单选题
Your database operates in ARCHIVELOGmode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence， 230， is not archived and it contained information from 10：35 a.m. onwards. The current time is 11：00 a.m. Because of a disk crash， you executed the following command to perform an incomplete recovery： RMAN> RUN { 2> SET UNTIL SEQUENCE 230 THREAD 1； 3> ALTER DATABASE MOUNT； 4> RESTORE DATABASE； 5> RECOVER DATABASE； 6> ALTER DATABASE OPEN RESETLOGS； 7> }； With reference to this scenario， which statement is true？（）
A
RMAN recovers up to log sequence 230， but not including 230.
B
RMAN returns an error because the log sequence number mentioned in the command should be 229.
C
RMAN returns an error because the log sequence number mentioned in the command may never be missing.
D
RMAN recovers up to and including log sequence 229 but then returns an error because log sequence 230 is missing.
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更多 “单选题Your database operates in ARCHIVELOGmode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence， 230， is not archived and it contained information from 10：35 a.m. onwards. The current time is 11：00 a.m. Because of a disk crash， you executed the following command to perform an incomplete recovery： RMAN RUN { 2 SET UNTIL SEQUENCE 230 THREAD 1； 3 ALTER DATABASE MOUNT； 4 RESTORE DATABASE； 5 RECOVER DATABASE； 6 ALTER DATABASE OPEN RESETLOGS； 7 }； With reference to this scenario， which statement is true？（）A RMAN recovers up to log sequence 230， but not including 230.B RMAN returns an error because the log sequence number mentioned in the command should be 229.C RMAN returns an error because the log sequence number mentioned in the command may never be missing.D RMAN recovers up to and including log sequence 229 but then returns an error because log sequence 230 is missing.” 相关考题
考题
The instance abnormally terminates because of a power outage. Which statement is true about redo log filesduring instance recovery（）A、Inactive and current redo log files are required to accomplish recovery.B、Online and archived redo log files are required to accomplish instance recovery.C、All redo log entries after the last checkpoint are applied from redo log files to data files.D、All redo log entries recorded in the current redo log file until the checkpoint position are applied to data files
考题
Redo log files are multiplexed in your database. The disk in which you have one of the redo log members is highly fragmented. In the process of defragmentation you lose the redo log member， which is not a member of the current group. How would you recover from the loss of the redo log member？（）A、SMON would automatically restore the lost file.B、You would need to restore the whole database from the last backup.C、You would need to restore the file from the last full database backup.D、You would need to use flashback technology to restore the lost redo log member.E、You would need to use Recovery Manager （RMAN） to restore the lost redo log member.F、You would need to restore the missing log file by copying one of the remaining files from the same group.
考题
Which statement is true regarding the Archiver （ARCn） process，archived log files，and recovery？ （）A、A database backup, combined with archived redo log files, guarantees that all committed data can be recovered to the point of failure. B、During recovery the ARCn background process copies its redo entries identified for recovery by the control file to the data files. C、After each write to an archived log, the mandatory background process ARCn writes its log sequence number and the first and last SCN number within the log sequence to the control file. D、At database recover time, and archived redo log is uniquely identified for recovery use by its redo thread number and destination ID number retrieved from the control file.
考题
In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure？ How would you recover the lost redo log member？（）A、 import the database from the last exportB、 restore all the members in the group from the last backupC、 drop the lost member from the database and then add a new member to the groupD、 restore all the database files from the backup and then perform a complete recoveryE、 restore all the database files from the backup and then perform an incomplete recovery
考题
You are using Oracle Database 10g. You performed an incomplete recovery of your database and opened the database with the RESETLOGS option. What is the effect of opening the database with the RESETLOGS option？（）A、This operation resets the SCN for the database.B、This operation creates a new incarnation of the database.C、This operation moves all the redo log files to a different location.D、This operation deletes the old redo log files and creates new redo log files.E、This operation updates all current datafiles and online redo logs and all subsequent archived redo logs with a new RESETLOGS SCN and time stamp.
考题
You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement： SQLALTER DATABASE OPEN RESETLOGS； Which of the following options is true about using the RESETLOGS option？（）A、 The log sequence is reset to 0.B、 All the online redo logs are deleted.C、 All the archived redo logs from a previous incarnation become useless.D、 The full database backup taken from a previous incarnation can be used in future.E、 Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.
考题
Your database operates in ARCHIVELOG mode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence， 230， is not archived， and it contained information from 10：35 a.m. onwards. The current time is 11：00 a.m. Because of a disk crash， you executed the following command to perform an incomplete recovery： RMAN RUN { 2 SET UNTIL SEQUENCE 230 THREAD 1; 3 ALTER DATABASE MOUNT; 4 RESTORE DATABASE; 5 RECOVER DATABASE; 6 ALTER DATABASE OPEN RESETLOGS; 7 }; With reference to this scenario， which statement is true？（）A、RMAN recovers up to log sequence 230， but not including 230.B、RMAN returns an error because the log sequence number mentioned in the command should be 229.C、RMAN returns an error because the log sequence number mentioned in the command may never be missing.D、RMAN recovers up to and including log sequence 229 but then returns an error because log sequence 230 is missing.
考题
Your database operates in ARCHIVELOGmode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence， 230， is not archived and it contained information from 10：35 a.m. onwards. The current time is 11：00 a.m. Because of a disk crash， you executed the following command to perform an incomplete recovery： RMAN RUN { 2 SET UNTIL SEQUENCE 230 THREAD 1； 3 ALTER DATABASE MOUNT； 4 RESTORE DATABASE； 5 RECOVER DATABASE； 6 ALTER DATABASE OPEN RESETLOGS； 7 }； With reference to this scenario， which statement is true？（）A、 RMAN recovers up to log sequence 230， but not including 230.B、 RMAN returns an error because the log sequence number mentioned in the command should be 229.C、 RMAN returns an error because the log sequence number mentioned in the command may never be missing.D、 RMAN recovers up to and including log sequence 229 but then returns an error because log sequence 230 is missing.
考题
You have configured the flash recovery area to store online redo log files， control files， archived redo logs and RMAN backups. Which of the following files can you successfully delete from the flash recovery area if you want to reclaim the space within it？（）A、 multiplexed control filesB、 RMAN obsolete backupsC、 multiplexed online redo log filesD、 archived redo logs that have not been copied to tape
考题
The instance abnormally terminates because of a power outage. Which statement is true about redolog files during instance recovery（）A、Inactive and current redo log files are required to accomplish recovery.B、Online and archived redo log files are required to accomplish instance recovery.C、All redo log entries after the last checkpoint are applied from redo log files to data files.D、All redo log entries recorded in the current redo log file until the checkpoint position are applied to datafiles.
考题
While performing the backup of the flash recovery area, you notice that one of the archived redo log files is missing. You have multiple destinations for archived redo log files. What implications does it have on the backup of the flash recovery area?（）A、The backup fails because one of the archived redo log files is missing. B、The backup succeeds but it would be without the missing archived log. C、During backup, you are prompted for the alternative destination for the missing archived redo log file. D、The backup succeeds because it fails over to one of the alternative archived redo log destinations.
考题
While performing the backup of the flash recovery area， you notice that one of the archived redo log files is missing. You have multiple destinations for archived redo log files. What implications does it have on the backup of the flash recovery area？（） A、 The backup fails because one of the archived redo log files is missing.B、 The backup succeeds but it would be without the missing archived log.C、 During backup，you are prompted for the alternative destination for the missing archived redo log file.D、 The backup succeeds because it fails over to one of the alternative archived redo log destinations.
考题
In which scenario is a Database Administrator NOT required to perform an incomplete recovery？（）A、 when all the online redo log groups are multiplexed and one of the members of a group is missingB、 when all the online redo log groups are not multiplexed and one log group is missingC、 when all the control files are missingD、 when some important tables are deleted from the database and purged from the Recycle Bin
考题
单选题Which components are needed for successful and most efficient recovery.（）A
The backup RB3 and the current online redo log filesB
the backup RB2 and the archived redo log files after the log sequence number 15622C
Backup R81 and the archived redo log hies after the log sequence number 12871D
The backup RB3 and the archived redo log files after the log sequence number 16721
考题
单选题You have configured the flash recovery area to store online redo log files， control files， archived redo logs and RMAN backups. Which of the following files can you successfully delete from the flash recovery area if you want to reclaim the space within it？（）A
multiplexed control filesB
RMAN obsolete backupsC
multiplexed online redo log filesD
archived redo logs that have not been copied to tape
考题
单选题While performing the backup of the flash recovery area， you notice that one of the archived redo log files is missing. You have multiple destinations for archived redo log files. What implications does it have on the backup of the flash recovery area？（）A
The backup fails because one of the archived redo log files is missing.B
The backup succeeds but it would be without the missing archived log.C
During backup，you are prompted for the alternative destination for the missing archived redo log file.D
The backup succeeds because it fails over to one of the alternative archived redo log destinations.
考题
单选题Redo log files are multiplexed in your database. The disk in which you have one of the redo log members is highly fragmented. In the process of defragmentation you lose the redo log member， which is not a member of the current group. How would you recover from the loss of the redo log member？（）A
SMON would automatically restore the lost file.B
You would need to restore the whole database from the last backup.C
You would need to restore the file from the last full database backup.D
You would need to use flashback technology to restore the lost redo log member.E
You would need to use Recovery Manager （RMAN） to restore the lost redo log member.F
You would need to restore the missing log file by copying one of the remaining files from the same group.
考题
多选题You are using Oracle Database 10g. You performed an incomplete recovery of your database and opened the database with the RESETLOGS option. What is the effect of opening the database with the RESETLOGS option？ （）AThis operation resets the SCN for the database.BThis operation creates a new incarnation of the database.CThis operation moves all the redo log files to a different location.DThis operation deletes the old redo log files and creates new redo log files.EThis operation updates all current datafiles and online redo logs and all subsequent archived redo logs with a new RESETLOGS SCN and time stamp.
考题
单选题While performing the backup of the flash recovery area, you notice that one of the archived redo log files is missing. You have multiple destinations for archived redo log files. What implications does it have on the backup of the flash recovery area?（）A
The backup fails because one of the archived redo log files is missing. B
The backup succeeds but it would be without the missing archived log. C
During backup, you are prompted for the alternative destination for the missing archived redo log file. D
The backup succeeds because it fails over to one of the alternative archived redo log destinations.
考题
单选题You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement： SQLALTER DATABASE OPEN RESETLOGS； Which of the following options is true about using the RESETLOGS option？（）A
The log sequence is reset to 0.B
All the online redo logs are deleted.C
All the archived redo logs from a previous incarnation become useless.D
The full database backup taken from a previous incarnation can be used in future.E
Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.
考题
单选题The instance abnormally terminates because of a power outage. Which statement is true about redo log filesduring instance recovery（）A
Inactive and current redo log files are required to accomplish recovery.B
Online and archived redo log files are required to accomplish instance recovery.C
All redo log entries after the last checkpoint are applied from redo log files to data files.D
All redo log entries recorded in the current redo log file until the checkpoint position are applied to data files
考题
单选题In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure. How would you recover the lost redo log member？（）A
import the database from the last exportB
restore all the members in the group from the last backupC
drop the lost member from the database， and then add a new member to the groupD
restore all the database files from the backup， and then perform a complete recovery E
restore all the database files from the backup， and then perform an incomplete recovery
考题
单选题In which scenario is a Database Administrator NOT required to perform an incomplete recovery？（）A
when all the online redo log groups are multiplexed and one of the members of a group is missingB
when all the online redo log groups are not multiplexed and one log group is missingC
when all the control files are missingD
when some important tables are deleted from the database and purged from the Recycle Bin
考题
单选题Which statement is true regarding the Archiver （ARCn） process，archived log files，and recovery？ （）A
A database backup, combined with archived redo log files, guarantees that all committed data can be recovered to the point of failure. B
During recovery the ARCn background process copies its redo entries identified for recovery by the control file to the data files. C
After each write to an archived log, the mandatory background process ARCn writes its log sequence number and the first and last SCN number within the log sequence to the control file. D
At database recover time, and archived redo log is uniquely identified for recovery use by its redo thread number and destination ID number retrieved from the control file.
考题
单选题When you are allowing RMAN to backup your archived redo log files，how does RMAN know which archived redo logs to back up from your archive log destination？（）A
RMAN keeps a list of archive logs in a text file.B
The DBA must manually tell RMAN which archive logs to backup.C
RMAN has access to target control file and/or catalog information.D
RMAN looks at the ARCHIVE_LOG_DEST parameter of your target database and backs up all archive logs found.
考题
单选题Your database operates in ARCHIVELOG mode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence， 230， is not archived， and it contained information from 10：35 a.m. onwards. The current time is 11：00 a.m. Because of a disk crash， you executed the following command to perform an incomplete recovery： RMAN RUN { 2 SET UNTIL SEQUENCE 230 THREAD 1; 3 ALTER DATABASE MOUNT; 4 RESTORE DATABASE; 5 RECOVER DATABASE; 6 ALTER DATABASE OPEN RESETLOGS; 7 }; With reference to this scenario， which statement is true？（）A
RMAN recovers up to log sequence 230， but not including 230.B
RMAN returns an error because the log sequence number mentioned in the command should be 229.C
RMAN returns an error because the log sequence number mentioned in the command may never be missing.D
RMAN recovers up to and including log sequence 229 but then returns an error because log sequence 230 is missing.
考题
单选题In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure？ How would you recover the lost redo log member？（）A
import the database from the last exportB
restore all the members in the group from the last backupC
drop the lost member from the database and then add a new member to the groupD
restore all the database files from the backup and then perform a complete recoveryE
restore all the database files from the backup and then perform an incomplete recovery
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